The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform

Muhammad Ardan Rezkynanda - One of the best experts on this subject based on the ideXlab platform.

  • studi desain Derrick Barge untuk offshore structure removal
    2016
    Co-Authors: Muhammad Ardan Rezkynanda
    Abstract:

    Indonesia merupakan salah satu negara penghasil minyak mentah di dunia, terbukti dulu Indonesia merupakan salah satu dari anggota Organization of Petroleum Exporting Countries (“OPEC”) sebelum keluar pada tahun 2008 dikarenakan sudah tidak dapat memenuhi kuota minimal. Tetapi masih terdapat Banyak perusahaan yang bergerak di bidang eksplorasi dan eksplotasi minyak di Indonesia, baik perusahaan asing maupun lokal yang mempunyai ladang pengeboran minyak baik di darat maupun di laut. Pada tahun 2012 dari 15 perusahaan yang melakukan pengeboran di laut Indonesia menghasilkan 90.929.053 barrels. Seluruh proses pelaksanaan kegiatan operasional eksplorasi dan eksploitasi. Migas secara langsung maupun tidak langsung akan memberikan pada perubahan zona lingkungan, baik pada tahap prakonstruksi, konstruksi dan pemboran, operasi produksi, pasca operasi hingga tahap penutupan tambang (Decommissioning). Untuk melakukan proses Decommissioning dibutuhkan berbagai kendaraan bantu dan salah satunya adalah Derrick Barge. DB adalah sebuah kapal tongkang yang dilengkapi dengan crane yang digunakan untuk mendukung kegiatan bangunan perminyakan terutama selama tahap pembangunan. Banyak kapal Derrick Barge yang sudah beroperasi dan dapat diidentifikasi dengan ukuran crane yang dimilikinya. Derrick Barge harus cukup besar untuk menangani gaya angkat yang diperlukan oleh crane dan tetap stabil serta dapat menyediakan tempat tinggal untuk ratusan pekerja saat melakukan pekerjan di atas kapal, crane, dan bangunan lepas pantai. Lalu dengan menggunakan metode optimation design approach, Derrick Barge dihitung dan dirancangan dengan beberapa batasan untuk mencari nilai pembangunan kapal yang paling minimum. Dari proses optimasi didapatkan ukuran utama Derrick barege adalah L = 133.52m, B = 30.48m, H = 7.6m, T = 4.45m =============================================================================================== Indonesia is one of crude oil producer in the world, as shown of it used to be the member of Organization of Petroleum Exporting Countries (OPEC) before resigning in 2008 due to it couldn't fulfill the minimal quota requirement. But there are still many companies which operate in oil exploration and exploitation sectors in Indonesia, both foreign companies and local companies that own onshore and offshore oil field. In 2012, out of 15 companies that operated in Indonesia, produced 90.929.053 barrels. All exploration and exploitation processes will cause environmental effects directly or indirectly, such as preconstruction stage, construction and drilling stage, production operation, after operation until decommissioning. For doing decommissioning process, it need many supported vehicles which one is Derrick Barge, a Barge that equipped with a crane that used for supporting the offshore activities especially during construction stage. There are so many kind of Derrick Barges that have already operated, identified by crane's size. Derrick Barge have to big enough to handle the lifting force that is needed by the crane and to keep it stable, also can provide the accommodation area for hundreds crews on board, crane and offshore structure. Then by using the optimation design approach method, Derrick Barge is designed by several restrictions to find the minimum value of ship building. By the optimation process, obtained the main dimension of Derrick Barge are L = 133.52m, B = 30.48m, H = 7.6m, T = 4.45m

He Yan-ping - One of the best experts on this subject based on the ideXlab platform.

  • Study on Optimizing Ballast Tanks for Revolving Derrick Barge
    2010
    Co-Authors: He Yan-ping
    Abstract:

    The limitation of optimization principles which are applied in the numerical analysis method has been further discussed.By comparing with the data of fixed lifting 7500 tons of cargo under two loading conditions,several problems existing in the original program and optimized program have been found.By establishing mathematical model and utilizing related software,some principles about ballast tank subdivision are summarized.They are applied and analyzed in several typical working conditions about rotary lifting and then a few rules are summed up.Finally,it is concluded how to optimize the design of ballast tanks for a large floating crane.

Xia Yimei - One of the best experts on this subject based on the ideXlab platform.

  • simulation of operation stability of revolving Derrick Barge
    Ship & Ocean Engineering, 2007
    Co-Authors: Xia Yimei
    Abstract:

    The ship hull and the revolving crane were modeled respectively,in order to calculate and display the real time floating condition and stability of the crane ship in the process of revolving under certain loading and working radius.So the best load plan can be quickly find.Real time surveillance of the changes of ship floating condition and stability and the assurance of working safety during its work is of great engineering application value.

M.l. Neudorfer - One of the best experts on this subject based on the ideXlab platform.

  • Dynamically Positioned Derrick Barge and PositionMeasuring Equipment for Lena Guyed Tower Installation
    Offshore Technology Conference, 2013
    Co-Authors: L.d. Ziems, E.b. Stidston, M.l. Neudorfer
    Abstract:

    A dynamic positioning (DP) system was installed on Brown and Root's Derrick Barge Atlas I and successfully used during the Lena guyed tower guying system installation. Modular design and onshore testing of the components resulted in rapid DP system installation and commissioning. Only minor DP equipment problems were experienced throughout the guying system installation. A long-baseline acoustic positioning system was used to measure the positions of the anchor piles, clump weights, and jacket during the Lena installation. The system provided relative position measurement accuracies on the order of + or - 5 feet in 1000 feet of water.

L.d. Ziems - One of the best experts on this subject based on the ideXlab platform.

  • Dynamically Positioned Derrick Barge and PositionMeasuring Equipment for Lena Guyed Tower Installation
    Offshore Technology Conference, 2013
    Co-Authors: L.d. Ziems, E.b. Stidston, M.l. Neudorfer
    Abstract:

    A dynamic positioning (DP) system was installed on Brown and Root's Derrick Barge Atlas I and successfully used during the Lena guyed tower guying system installation. Modular design and onshore testing of the components resulted in rapid DP system installation and commissioning. Only minor DP equipment problems were experienced throughout the guying system installation. A long-baseline acoustic positioning system was used to measure the positions of the anchor piles, clump weights, and jacket during the Lena installation. The system provided relative position measurement accuracies on the order of + or - 5 feet in 1000 feet of water.